Half to james william nourbourn



(No Model.) 2 Sheets-Sheet 1. A. LATHAM. MACHINE FOR MANUFACTURINGPLASTIC COVERED EYELETS.

Patented Aug. 25, 1896.

a z 77jii7cesses; /A

(No Model.) 2 Sheet-Sheet 2.

. A. LATHAM. MACHINE FOR MANUFAGTURING PLASTIC COVERED EYELETS.

No. 566,691. Patented Aug. 25., 1896.

ALBERT LATHAH, OF SPRINGFIELD, MASSACHUSETTS, ASSIGNOR OF ONE- HALF TOJAMES YVILLIAM NOURBOURN, OF SAME PLACE.

MACHINE FOR MANUFACTURING PLASTIC-COVERED EYELETS.

SPECIFICATION forming part of Letters Patent N 0. 566,691, dated August25, 1896.

Application tiled January 6, 1896.

To (all whom it may concern.-

Be it known that I, ALBERT LATHAM, a citizen of the United States,residing at Springfield, in the county of I'Iampden and State ofMassachusetts, have invented certain new and useful Improvements inMachines for the Manufacture of Plastic-Covered Eyelets, of which thefollowing is a full, clear, and exact description.

This invention relates to improvements in dies for applying plasticcoverings to the heads of eyelets, and to means operating in conjunctionwith the dies for ejecting the covered eyelets therefrom, and toimproved machinery in which the covering-dies may be introduced and inwhich the ejector may be embodied for facilitating the manipulation ofthe dies and ejector and for securing avoidance of violent poundings andother rough treatment of the die-plates which have heretofore been invogue and which have resulted after a while in serious distortion andinjury to the die plates.

The improvements are illustrated in the accompanying drawings, describedsomewhat minutely in conjunction therewith, and set forth and covered inthe claims.

In said drawings, Figure 1 is a side elevation of the machine embodyingthe ejector and with the pair of coveringdies indicated therein. Fig. 2is a plan View. Fig. 3 is a front-end elevation of the same. Figs. at,5, and 6 are sectional views, drawn on a larger scale showing principalportions of the machine in different positions as occurring at differentstages in the operation thereof. Fig. 7 is a sectional view of thehead-forming die on a large scale.

Eyelets having heads or tops of varying constructions may beadvantageously operated upon by the exercise of the presentimprovements.

In the drawings, A represents the eyelet receiving dieplate, having (inmultiple series usually) the hole or socket for the reception of thetubular shank of the eyelet.

13 represents the plate comprising the headforming die, having also inmultiplicity, as well understood in this art, the annular concavehead-forming depression I), with the cen- Serial No. 574,499. (Nomodel.)

tral boss or stud (Z, of an approximately conical form for forming orshaping the flaring mouth or upper opening of the eyelet. The die B withthe boss (Z has the central perforationf, through which the ejector-pinG moves. The ejector-pin is mounted on a suitable plate or carrier 0therefor.

Assuming that a ring or washer of celluloid or other plastic material isinterposed between the head of an eyelet which is in die A and thehead-forming die B, the lower end of the eyelet being. inwardly crilnpedor turned, as seen at to, and the ejector-pin C is passed through tl1edie-plate B and its boss centrally of the latter and down into theeyelet, when die-plates A and B are slightly sep arated such pin will,by contacting against the interned or contracted lower portion of theeyelet, force the latter from the headforming die 13, in which it hasthe greatest tendency to adhere; but, on the other hand, assuming that astrip, sheet, or flat piece of celluloid or suitable plastic material isplaced between the top of the eyelet and the headfori'ning die and thedies are pressed together and then separated, the ejector-pin then incontacting against the portion of the celluloid which is pressed downwithin the eyelettube will, by such contact, force the eyelet from itsadhesion in the head-forn'iing die B, and therefore, while thecapabilities for operation of the ejector relative to the dies are notlimited to either provision for affording a forcing contact for theejector-pin C that is, the inturned portion .1 of the eyelet or theplastic material in the eyelet-it will be seen that when the former modeis practised the result of ejection is derived by the simple andpractical expedient of inturning an end portion of the eyelet-tube andwith a corresponding saving of the plastic stock. These dies A 1-3, incombination with the ejector-pin C, may be operated advantageously in amachine of which they may be regarded as a part and which will be nowdescribed.

In this machine, 1) represents a suitable base having at opposite sidesthe uprights c c at the forward end and the uprights a 05 at the rearend which latter are upwardly extended, supporting in a stable mannerthe platform-like part E, having the central upwardly-extended hubEithrough which operates the plunger F, on the lower end of which,beneath the said elevated platform, is mounted the carrier 0 for thedepending ejectionpin 0, or the multiple series thereof. On the side ofthe hub E is a boss I,which is hollowed out toreceive therein the pinionJ ,which meshes with the rack-teeth F on the plunger. The pinioniscarried on the arborJ for which suitable bearings are provided, and thearbor has the operating-lever K, whereby the ejector may be operated.

The uprights a a a a have the ledges or rests The head-forming die B is,as seen in Fig. 3, a little wider than die A, overlying the latter atopposite edges. The dies A B, with the eyelets and plastic in andbetween them, are pressed together as usual in a hydraulic press beforebeing subjected to the ejecting operation contemplated by the pres entimprovement, and there is such a natural adhesion of the dies that theyremain in the close relations indicated in Figs. 3 and 4. It will alsobe observed that while the die B is wider than. die A, overhanging it atthe sides, said die B is shorter than die A, the latter extending,step-like, beyond the ends of the up per die, as will be seen in Figs. 1and 4:.

The ej ector-carrier 0 which is operated by the rack and piniondescribed, (it may be otherwise moved,) has pivotally hung at h h in theear-pieces"; 2' thereon the transverse-bars G G,which move bodilyvertically in con j unction with the said carrier, and also aresusceptible of swinging movements in the direction of the length of themachine.

One of the swinging bars G has the handle j by which to operate it, andboth of these bars are united by a medium of connection whereby when oneis swung in one direction the other will be oppositely swung; and ashere shown the connection consists in the link 7;, which is simplypivotally connected at opposite ends,as seen at k ,lig.1,respectively,above and below the pivotal supports h h on which the said bars G G arehung.

V II represents a carriage or conveyer mov- "able longitudinally on thebase D of the machine and preferably mounted on rollers m m, which runin the longitudinal ways it n therefor.

The carriage has the pivoted handle L, which has the depending latchingprojection 19, that engages in an aperture 0 in the base of the machine.

The dies A B,lying closely together with the eyelets and plasticcovering material therein, as coming from the hydraulic press,are placedin the machine, the lateral edges of die B resting on the ledges a" aand the dies are slid along said ledges under the ej ector-carrier sothat the ej ector-pins will register with the perforations in the dies.A stop as constituted by the cross-bar M, Fig. 1, or as otherwise provided without involving invention, will prop= erly limit the endwisemovements of the dies as they are introduced for registry under theejector.

The lever K is swung downward a certain distance, the bars G Gcontacting against the ends of the receiving-die A, which extend beyondthe ends of the head-forming die B, thereby forcing die-plate A downaway from die B and onto the carriage H. (See Figs. 4c and 5.)

The eyelets (or the greater portion thereof) remain somewhat firmlyadhering in the head-forming die B.

Up to this stage in the operation the e jectorcarrier and ejector-pins Chave not been. moved down sufficiently to cause the ends of the pins toexert a forcing contact within and against the inturned lower ends ofthe eyelets, or against the plastic material therein. The forcing actionon the lever K is temporarily discontinued; the handle j is moved tospread the bars G G, so that they and the ejector may further movedownward, and such further and final movement is imparted by aresumption of the swing of the lever K, the ejector-pins detaching andforcing the eyelets from the die B, they dropping onto or loosely intothe sockets of the receiving die-plate A. (See Fig. 6.) The ejector isthen elevated, and should any of the eyelets adhere or bind on theejector-pins they would be stripped therefrom as the ejector-pinsretreat upwardly through the upper die B. The bars G resume their normalvertically depending positions by gravity ormay be restored thereto by amanipulation of the handle j. The carriage H is drawn out endwise,carrying the die A which is on it therewith, and causing the endwiseslide, in unison therewith, of the now partially separated covering-dieB by reason of the dowel-andsocket engagement between the dies. The gapseen at y enables with the utmost facility the introduction and finalwithdrawal of the die-plates from the machine.

WVhen the partially separated dies A B are forwardly withdrawn fromunder the ejector, the upper die B is lifted away from the die A, whichis on the carriage, leaving the eyelets in die A exposed for inspection.

'While the design and mechanical construction of the machine here shownis very simple, satisfactory, and efficient, it may be departed fromconsiderably in respect of detail and form without departure from thenew features of invention as considered in their broader aspect.

The combination, with a head-forming die having an axial perforation andan eyeletreceiving die, of an ejector movable through said perforationand operating to exert a pressure internally against a covered eyeletadhering in said head-forming die for dislodging it therefrom, hereindescribed and shown, but not herein claimed, constitutes thesubjectunatter of and is claimed in an application for patent filed byme July 14, 1896, Serial No. 599,070.

I claim- 1. The combination witha die-plate having an aperture forreceiving the shank of an eyelet, leaving the head thereof exposed, of acovering and head-forming die having a circular depression correspondingto the desired form of the head and having the approximately conicalstud or projection to enter within and form the flaring mouth of thecovered eyelet, substantially as described.

2. The combination with a die-plate having an aperture for receiving theshank of an eyelet, leaving the he ad thereof exposed, of a covering andhead-forming die having a circular depression corresponding to thedesired form of the head and having the approximately conical stud orprojection to enter within and form the flaring 1n outh of the coveredeyelet, said head-forming die having a perforation through it in thedirection of its axis, substantially as described.

3. The combination with an ejector-piece and the pair of eyelet-coveringdies, of means for supporting them in operative proximity to the ejectorand a mechanism for imparting a reciprocatory movement to the ejectorrelative to and within perforations which are in the dies, substantiallyas described.

i. In a machine of the character described the combination with a pairof removable eyelet-covering dies, an ejector, an ejector-carrier, andmeans for imparting a .reciprocatory movement to the ejector-carrier, arest or sup port for maintaining one of the dies in cooperativeproximity to the ejector, and means for separating one of the dies fromthe other, substantially as described.

In a machine of the character described the combination with aneyelet-covering die,

an ejector, and carrier therefor having means for operating it, a restfor supporting the die in cooperative proximity to the ejector, and acarriage or conveyer located beneath the ejector and die substantiallyas described.

(5. In an eyelet-ejecting machine the co1nbination with the ejector-pinthereon, a pair of eyelet-covering dies and a rest on which one of saiddies is supported, means for moving the ejector relatively to the die,and a part on the ejector-carrier for forcing one of said dies away fromthe other, substantially as de scribed.

7. The combination with a pair of eyeletcovering dies, the rest forsupporting one only of the dies, the ejector-carrier and ejector-pin,means for moving said carrier, one or more bars G G mounted on theejector-carrier and movable therewith and adapted to engage thenon-supported die, the same being independently movable on the carrierto disengage said non-supported die, substantially as described.

8. In a machine of the character described the combination with the pairof removable and separable eyelet-covering dies, of a rest for one onlyof said dies, the ejector-carrier and ejectonpin, the paired bars ormembers G G pivotally mounted on the ejector-carrier, means forimparting reciprocatory movements to the carrier, the link pivota-llyconnecting said paired members respectively above and below the pivotedsupports of the latter, and an appliance for manually operating one ofsaid members, substantially as described.

9. In a machine of the characterdescribed the combination with the pairof separable matching-dies, one being wider than the other, of theopposite uprights having rests on which the edges of the wider die maybe supported, the ejector and carrier therefor and means for operatingthe ejector, substantially as described.

10. In a machine of the characterdescribed the combination with theejector-carrier, and ejector carried thereby, means for imparting areciprocatory movement to the carrier and opposing uprights having theledges on which a die may be supported, of an eyelct-coverin g dieadapted to be supported, on said ledges, under the ejector, and aconveyer movable under and away from under the ejector, substantially asdescribed.

11. In combination the ejector and reciprocatory carrier therefor, themovable members G G on the carrier, the opposing rests for a die, thepair of separate dies, the upper one of which is wider than its fellow,while the Inc under one is longer than the upper die, the conveyor,means for operating the reciprocatory carrier, and means for moving thesaid member G, substantially as and for the purposes set forth.

12. In combination, a support on which an eyelet-coverin g die may rest,the plunger having the rack-teeth and the ejector, at its lower end,which is provided with the ejector-pins,

the pinion, meshing with the rack, a lever for 1 IO operating the pinionand a removable eyeletcovering die, substantially as described.

13. In a machine of the character described the combination with thereciprocatory ejector, a rest for one of a pair of dies, whereby it I r5 may be supported under the ejector, a carriage movable under theposition of support of the said die, and a latch for detachablyconfining the carriage in its position under the die and ejector,substantially as described. I 20 ALBERT LATHAM. Vfitnesses E. M. LATHAM,J. W. NoURBoURN.

